LOCTITE 638 - Retaining Compound - Henkel Adhesives
LOCTITE 638 is a high strength, fast curing, general purpose retaining compound. For a retaining compound offering high strength on all metals, including passive substrates, try LOCTITE® 638. You can expect high temperature performance and good oil tolerance, a fixture time of just four minutes, and gap fill of 0.15 mm to 0.25 mm.
LOCTITE® 638 - Henkel Adhesives
For a retaining compound offering high strength on all metals, including passive substrates, try LOCTITE® 638. You can expect high temperature performance and good oil tolerance, a fixture time of just four minutes, and gap fill of 0.006" to 0.01" (0.15 mm to 0.25 mm). It even tolerates minor surface contaminants, including industrial oils.
How to apply Loctite 638 - ConRo Electronics
Instructions on how to apply the Loctite 638 Retaining Compound. 1. Preparation. Cleaning. Activation. If cure speed is too slow due to passive metals or low temperature (below 5°C), use activator LOCTITE 7240 or LOCTITE 7649 (see cure speed vs activator graph in the TDS). 2. Application. For slip fitted assemblies.
Loctite 638: Efficient Sealing Adhesive that Reduces Gaps and ...
5. How to Use. Clean the Surfaces: Ensure surfaces are clean and free from oil, dirt, and debris to achieve optimal adhesion. Apply the Compound: Evenly apply Loctite 638 to the surface of one of the parts. Assemble the Parts: Join the parts and tighten to ensure the compound fills the gaps.
Directions for use: For Assembly 1. For best results, clean all surfaces (external and internal) with a LOCTITE® cleaning solvent and allow to dry. 2. To accelerate cure speed or where large gaps are present, use activator and allow to dry. 3. For Slip …
LOCTITE 638 - Retaining Compound - Henkel Adhesives
LOCTITE® 638 is designed for the bonding of cylindrical fitting parts, particularly with narrow bond gaps approaching 0.25 mm. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration.
Directions for use: For Assembly 1. For best results, clean all surfaces (external and internal) with a LOCTITE® cleaning solvent and allow to dry. 2. To accelerate cure speed or where large gaps are present, use activator and allow to dry. 3. For Slip Fitted Assemblies, apply adhesive around the leading edge of the pin and the inside of the ...
How to choose the right LOCTITE® threadlocker - Henkel Adhesives
LOCTITE threadlockers reliably secure assemblies but can vary in removal ease based on their strength. Low and medium-strength types are removable with hand tools, while high-strength ones may need intense heat. For regular maintenance, choose low or medium-strength threadlockers like purple or blue variants.
LOCTITE® 638 - Henkel Adhesives
For a retaining compound offering high strength on all metals, including passive substrates, try LOCTITE ® 638. You can expect high temperature performance and good oil tolerance, a fixture time of just four minutes, and gap fill of 0.006" to 0.01" (0.15 mm to 0.25 mm).
When to Use Which LOCTITE + Charts from Henkel | AIMS Industrial
Below is a visual guide from Henkel (and a PDF copy) that shows which LOCTITE ® product to use for each part of your pump. You can buy most of those products from our online store: According to this LOCTITE® selector guide: Instant adhesives are ideal for bonding small- to medium-size parts with close-fitting, smooth surfaces.
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